| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,196,170 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 736,612 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,864 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,201 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,167,607 |
| Biggest Countries by Area | 0 | - | 4.99 | 828,808 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,452 |
| Island Countries Quiz | 0 | - | 4.99 | 577,071 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,412 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,112 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,645 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,013 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,863 |
| Countries That Border Russia | 0 | - | 4.98 | 368,150 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,569 |
| Communist Countries in History | 0 | - | 4.48 | 383,486 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,656 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,054 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,316 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,745 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,069 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,912 |
| One Border Countries | 0 | - | 4.98 | 359,104 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,873 |
| EU Countries Quiz | 0 | - | 4.99 | 206,991 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,473,474 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,253,110 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,454 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,922 |
| Countries that Start with A | 0 | - | 4.96 | 1,630,542 |
| Countries that Start with B | 0 | - | 4.94 | 1,768,085 |
| Countries that Start with C | 0 | - | 4.95 | 1,401,006 |
| Countries that Start with D | 0 | - | 4.96 | 464,045 |
| Countries that Start with E | 0 | - | 4.93 | 1,033,292 |
| Countries that Start with G | 0 | - | 4.95 | 1,130,780 |
| Countries that Start with H | 0 | - | 4.92 | 391,061 |
| Countries that Start with I | 0 | - | 4.90 | 977,240 |
| Countries that Start with J | 0 | - | 4.96 | 394,363 |
| Countries that Start with K | 0 | - | 4.94 | 572,529 |
| Countries that Start with L | 0 | - | 4.98 | 814,017 |
| Countries that Start with N | 0 | - | 4.90 | 835,179 |
| Countries that Start with P | 0 | - | 4.94 | 923,095 |
| Countries that Start with R | 0 | - | 4.42 | 300,217 |
| Countries that Start with S | 0 | - | 4.96 | 1,357,329 |
| Countries that Start with T | 0 | - | 4.89 | 759,484 |
| Countries that Start with U | 0 | - | 4.97 | 685,262 |
| Countries that Start with V | 0 | - | 4.97 | 456,513 |
| Countries that Start with F | 0 | - | 4.76 | 424,401 |
| Countries that Start with M | 0 | - | 4.95 | 1,061,086 |
| Countries that Border China | 0 | - | 4.97 | 212,122 |
| Countries in World War II | 0 | - | 4.48 | 680,791 |
| Countries in World War I | 0 | - | 4.92 | 182,940 |
| Countries with Four Letters | 0 | - | 4.99 | 321,272 |
| Countries of Africa | 0 | - | 5.00 | 1,736,196 |
| Countries of South America | 0 | - | 5.00 | 624,095 |
| Countries of North America Quiz | 0 | - | 5.00 | 707,490 |
| Countries of Oceania | 0 | - | 5.00 | 713,680 |
| Vietnam War Countries | 0 | - | 4.78 | 76,728 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,485 |
| Countries Bordering France | 0 | - | 4.90 | 309,287 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,780 |
| Countries Bordering Germany | 0 | - | 4.99 | 292,571 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,208 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,387 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,132 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,096 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,299 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,100 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,887 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,383 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,652 |
| Independence from Whom | 0 | - | 4.99 | 152,973 |
| Countries with Z | 0 | - | 4.99 | 223,102 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,548 |
| Political Movements by Country | 0 | - | 4.50 | 61,982 |
| "Land" Countries | 0 | - | 4.98 | 265,097 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,749 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 217,359 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,430 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,639 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,830 |
| Former Countries by Capital | 0 | - | 4.41 | 97,409 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,096 |
| Biggest Cities in History | 0 | - | 4.47 | 70,618 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,621 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,836 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,374 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,400 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,696 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,237 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,206 |
| Historical City to Country | 0 | - | 4.81 | 66,415 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,893 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,732 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,826 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,682 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,085 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,330,083 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,981 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,158 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,790 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,993 |
| Former Countries | 0 | - | 4.52 | 100,427 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,337 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,712 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,778 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,640 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,993 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,231 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,667 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 997,765 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,626 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,858 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,850 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.57 | 68,373 |
| Every Country Shape | 0 | - | 4.99 | 313,742 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,881,011 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,368 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,647 |
| Countries with Megacities | 0 | - | 4.99 | 176,005 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,443 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,307 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,106 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,421 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,648,567 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.93 | 211,918 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,576 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,989 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,383 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,694 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,083 |
| Most Populous Countries by Year | 0 | - | 4.77 | 79,093 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,497 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,427 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,641 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,087 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,650 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,976 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,321 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,840 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,901 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,494 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,949 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,526 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,964 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,492 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,556 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,014 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,070 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,435 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,588 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,541 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,325 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,955 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,096 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,283 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,361 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,619 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,056 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,328 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,791 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,202 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,093 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,419 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,991 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,011 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,080 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,604 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,930 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,980 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,697 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,476 |
| Random Flag to Country | 0 | - | 4.99 | 388,269 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,042 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,999 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,095,527 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,308 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,191 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,911 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,077 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,684 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,531 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,391 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,454 |
| Battle to Country | 0 | - | 4.89 | 30,605 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,018 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,696 |
| Countries by Former Name | 0 | - | 4.98 | 82,669 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,792 |
| Random European Countries on a Map | 0 | - | 4.98 | 212,872 |
| Random African Countries on a Map | 0 | - | 4.98 | 199,298 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,510,951 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,866 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 260,866 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 380,986 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,629 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,923 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,722 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,593 |
| Countries by Population Range - Tile Select | 0 | - | 4.82 | 43,605 |
